I don't advise that. There have been *huge* changes from old Suze STonX (the famous "epsilon" version) to the current one, as far as I can tell. You'd better download the latest version from https://sourceforge.net/projects/stonx/
Feel free to contact me at yves-gablin@ifrance.com if you have problems compiling STonX. I'm not expert at this as it worked flawlessly for me, but maybe I can help, especially if you give me the error messages you get.